当我右键单击
.EDMX
文件并单击
Generate Database From Model
,由于表名的原因,生成的脚本显然是错误的。它生成的是以下脚本。请注意
DROP TABLE
部分与
CREATE TABLE
部分。
为什么这不一致?
这显然不是一个可重用的脚本。我创建的是一个名为“address”的实体和一个名为“company”的实体等(都是单数)。实体集名称是复数形式的。“复数新对象”布尔值也不会改变这一点。怎么回事?
值得一提的是,我最初是通过将edmx指向一个具有非复数名称的表的数据库来生成edmx的,现在我已经做了一些更改,我想换一种方式返回。我想有一个来回的选择,因为db-first和model-first模型在所有场景中都不是理想的,而且我有控制权确保不会出现多人同时双向的合并问题。
-- --------------------------------------------------
-- Dropping existing FOREIGN KEY constraints
-- NOTE: if the constraint does not exist, an ignorable error will be reported.
-- --------------------------------------------------
ALTER TABLE [Address] DROP CONSTRAINT [FK_Address_StateID-State_ID];
GO
ALTER TABLE [Company] DROP CONSTRAINT [FK_Company_AddressID-Address_ID];
GO
ALTER TABLE [Employee] DROP CONSTRAINT [FK_Employee_BossEmployeeID-Employee_ID];
GO
ALTER TABLE [Employee] DROP CONSTRAINT [FK_Employee_CompanyID-Company_ID];
GO
ALTER TABLE [Employee] DROP CONSTRAINT [FK_Employee_PersonID-Person_ID];
GO
ALTER TABLE [Person] DROP CONSTRAINT [FK_Person_AddressID-Address_ID];
GO
-- --------------------------------------------------
-- Dropping existing tables
-- NOTE: if the table does not exist, an ignorable error will be reported.
-- --------------------------------------------------
DROP TABLE [Address];
GO
DROP TABLE [Company];
GO
DROP TABLE [Employee];
GO
DROP TABLE [Person];
GO
DROP TABLE [State];
GO
-- --------------------------------------------------
-- Creating all tables
-- --------------------------------------------------
-- Creating table 'Addresses'
CREATE TABLE [Addresses] (
[ID] int IDENTITY(1,1) NOT NULL,
[StreetAddress] nvarchar(100) NOT NULL,
[City] nvarchar(100) NOT NULL,
[StateID] int NOT NULL,
[Zip] nvarchar(10) NOT NULL
);
GO
-- Creating table 'Companies'
CREATE TABLE [Companies] (
[ID] int IDENTITY(1,1) NOT NULL,
[Name] nvarchar(100) NOT NULL,
[AddressID] int NOT NULL
);
GO
-- Creating table 'People'
CREATE TABLE [People] (
[ID] int IDENTITY(1,1) NOT NULL,
[FirstName] nvarchar(100) NOT NULL,
[LastName] nvarchar(100) NOT NULL,
[AddressID] int NOT NULL
);
GO
-- Creating table 'States'
CREATE TABLE [States] (
[ID] int IDENTITY(1,1) NOT NULL,
[Name] nvarchar(100) NOT NULL,
[Abbreviation] nvarchar(2) NOT NULL
);
GO
-- Creating table 'Employees'
CREATE TABLE [Employees] (
[ID] int IDENTITY(1,1) NOT NULL,
[PersonID] int NOT NULL,
[CompanyID] int NOT NULL,
[Position] nvarchar(100) NOT NULL,
[BossEmployeeID] int NULL
);
GO
-- --------------------------------------------------
-- Creating all PRIMARY KEY constraints
-- --------------------------------------------------
-- Creating primary key on [ID] in table 'Addresses'
ALTER TABLE [Addresses]
ADD CONSTRAINT [PK_Addresses]
PRIMARY KEY ([ID] );
GO
-- Creating primary key on [ID] in table 'Companies'
ALTER TABLE [Companies]
ADD CONSTRAINT [PK_Companies]
PRIMARY KEY ([ID] );
GO
-- Creating primary key on [ID] in table 'People'
ALTER TABLE [People]
ADD CONSTRAINT [PK_People]
PRIMARY KEY ([ID] );
GO
-- Creating primary key on [ID] in table 'States'
ALTER TABLE [States]
ADD CONSTRAINT [PK_States]
PRIMARY KEY ([ID] );
GO
-- Creating primary key on [ID] in table 'Employees'
ALTER TABLE [Employees]
ADD CONSTRAINT [PK_Employees]
PRIMARY KEY ([ID] );
GO
-- --------------------------------------------------
-- Creating all FOREIGN KEY constraints
-- --------------------------------------------------
-- Creating foreign key on [StateID] in table 'Addresses'
ALTER TABLE [Addresses]
ADD CONSTRAINT [FK_Address_StateID_State_ID]
FOREIGN KEY ([StateID])
REFERENCES [States]
([ID])
ON DELETE NO ACTION ON UPDATE NO ACTION;
-- Creating non-clustered index for FOREIGN KEY 'FK_Address_StateID_State_ID'
CREATE INDEX [IX_FK_Address_StateID_State_ID]
ON [Addresses]
([StateID]);
GO
-- Creating foreign key on [AddressID] in table 'Companies'
ALTER TABLE [Companies]
ADD CONSTRAINT [FK_Company_AddressID_Address_ID]
FOREIGN KEY ([AddressID])
REFERENCES [Addresses]
([ID])
ON DELETE NO ACTION ON UPDATE NO ACTION;
-- Creating non-clustered index for FOREIGN KEY 'FK_Company_AddressID_Address_ID'
CREATE INDEX [IX_FK_Company_AddressID_Address_ID]
ON [Companies]
([AddressID]);
GO
-- Creating foreign key on [AddressID] in table 'People'
ALTER TABLE [People]
ADD CONSTRAINT [FK_Person_AddressID_Address_ID]
FOREIGN KEY ([AddressID])
REFERENCES [Addresses]
([ID])
ON DELETE NO ACTION ON UPDATE NO ACTION;
-- Creating non-clustered index for FOREIGN KEY 'FK_Person_AddressID_Address_ID'
CREATE INDEX [IX_FK_Person_AddressID_Address_ID]
ON [People]
([AddressID]);
GO
-- Creating foreign key on [CompanyID] in table 'Employees'
ALTER TABLE [Employees]
ADD CONSTRAINT [FK_Employee_CompanyID_Company_ID]
FOREIGN KEY ([CompanyID])
REFERENCES [Companies]
([ID])
ON DELETE NO ACTION ON UPDATE NO ACTION;
-- Creating non-clustered index for FOREIGN KEY 'FK_Employee_CompanyID_Company_ID'
CREATE INDEX [IX_FK_Employee_CompanyID_Company_ID]
ON [Employees]
([CompanyID]);
GO
-- Creating foreign key on [BossEmployeeID] in table 'Employees'
ALTER TABLE [Employees]
ADD CONSTRAINT [FK_Employee_BossEmployeeID_Employee_ID]
FOREIGN KEY ([BossEmployeeID])
REFERENCES [Employees]
([ID])
ON DELETE NO ACTION ON UPDATE NO ACTION;
-- Creating non-clustered index for FOREIGN KEY 'FK_Employee_BossEmployeeID_Employee_ID'
CREATE INDEX [IX_FK_Employee_BossEmployeeID_Employee_ID]
ON [Employees]
([BossEmployeeID]);
GO
-- Creating foreign key on [PersonID] in table 'Employees'
ALTER TABLE [Employees]
ADD CONSTRAINT [FK_Employee_PersonID_Person_ID]
FOREIGN KEY ([PersonID])
REFERENCES [People]
([ID])
ON DELETE NO ACTION ON UPDATE NO ACTION;
-- Creating non-clustered index for FOREIGN KEY 'FK_Employee_PersonID_Person_ID'
CREATE INDEX [IX_FK_Employee_PersonID_Person_ID]
ON [Employees]
([PersonID]);
GO
-- --------------------------------------------------
-- Script has ended
-- --------------------------------------------------
